Be creative here there are no wrong ideas.
I would like the Spartan laser to be a weapon personally, just called something different "Charge Rifle" was a name I had in mind
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Grenade launcher. Semi-auto pistol (not hand cannon), SMG, Slug round shotties, a fuçking Crossbow, land-mine launcher, an actual anti-tank rifle that does what it's supposed to and replaces the "no land beyond". [spoiler]NINJA VANISH![/spoiler]